Answer:
Row 1 -
1/3, 1/2, 1/3, 2/3, 2/3, 8/15, 1/2.
Row 2 -
3/4, 3/4, 2/7, 21/25, 5/6, 7/9, 1/3.
Row 3 -
3/20, 7/20, 3/25, 3/5, 3/5, 1, 3/2 OR 1 1/2.
Hope this helped you out.
31
Step-by-step explanation:
5+(6-5)+5^2
use PEMDAS,
Parentheses
Exponents
Multiply
Divide
Addition
Subtraction
meaning-
5 + 1 + 5^2
5 + 1 + 25
y = 4
15 x 4 = 60
60 = 60
Therfore, y = 4
1.5 km/hour
d is the David's speed in still water
c is the speed of the current
Going with the current, he travels d+c km per hour.
Going against the current, he travels d-c km per hour.
d+c = (20 km)/(2.5 hours) = 8 km/hour
d-c = (20 km)/(4 hours) = 5 km/hour
Add the equations to eliminate the c terms
d+c = 8
d-c = 5
----------
2d = 13
d = 6.5 km/hour
c = 8-d = 1.5 km/hour
Based on the information that they give you, prove "this". In your statements, you can use any of the properties of a triangle, then give the name of the property in your reasons.